#!/bin/bash

if test "$Argc" -ne 1 {
    echo "Usage: bootgen.sh *build dir*"
    exit 1
}

global BUILD := $1

# Re-locator Path
global RELOCATOR := 'bootmgr/relocator'

# Build location
global BOOTMGR := $(BUILD)

# Check for re-locator binary
if test ! -f $RELOCATOR/relocator.bin {

	echo "Error : Relocator Not found!"
	exit 1
} else {
	echo "Relocator found..."
}

# Check for boot manager binary
if test ! -f $BOOTMGR/bootmgr.bin {

	echo "Error : Boot Manager Not found!"
	exit 1
} else {
	echo "Boot Manager found..."
}

# echo
echo "Generating bootloader..."

# Generate an all 0 bin file
dd if=/dev/zero of=__tmp.bin ibs=1 count=256 conv=notrunc >/dev/null !2 > !1

# Generate a 0 padded version of the relocator 
dd if=$RELOCATOR/relocator.bin of=__tmp.bin ibs=1 conv=notrunc >/dev/null !2 > !1

# Concatenate the re-locator and the boot-manager
cat __tmp.bin $BOOTMGR/bootmgr.bin > $BOOTMGR/bootloader.bin

# Remove the tmp files
rm -f __tmp.bin

# Remove bootmgr.bin
rm -f $BOOTMGR/bootmgr.bin
(CommandList
  children: [
    (If
      arms: [
        (if_arm
          cond: [
            (Sentence
              child: (C {(Lit_Other "[")} {(DQ ($ VSub_Pound "$#"))} {(-ne)} {(1)} {(Lit_Other "]")})
              terminator: <Op_Semi ";">
            )
          ]
          action: [(C {(echo)} {(DQ ("Usage: bootgen.sh *build dir*"))}) (C {(exit)} {(1)})]
          spids: [-1 19]
        )
      ]
      spids: [-1 33]
    )
    (Assignment
      keyword: Assign_None
      pairs: [(assign_pair lhs:(LhsName name:BUILD) op:Equal rhs:{($ VSub_Number "$1")} spids:[36])]
      spids: [36]
    )
    (Assignment
      keyword: Assign_None
      pairs: [
        (assign_pair
          lhs: (LhsName name:RELOCATOR)
          op: Equal
          rhs: {(bootmgr/relocator)}
          spids: [43]
        )
      ]
      spids: [43]
    )
    (Assignment
      keyword: Assign_None
      pairs: [(assign_pair lhs:(LhsName name:BOOTMGR) op:Equal rhs:{(${ VSub_Name BUILD)} spids:[50])]
      spids: [50]
    )
    (If
      arms: [
        (if_arm
          cond: [
            (Sentence
              child: 
                (C {(Lit_Other "[")} {(KW_Bang "!")} {(-f)} {($ VSub_Name "$RELOCATOR") (/relocator.bin)} 
                  {(Lit_Other "]")}
                )
              terminator: <Op_Semi ";">
            )
          ]
          action: [(C {(echo)} {(DQ ("Error : Relocator Not found!"))}) (C {(exit)} {(1)})]
          spids: [-1 73]
        )
      ]
      else_action: [(C {(echo)} {(DQ ("Relocator found..."))})]
      spids: [88 97]
    )
    (If
      arms: [
        (if_arm
          cond: [
            (Sentence
              child: 
                (C {(Lit_Other "[")} {(KW_Bang "!")} {(-f)} {($ VSub_Name "$BOOTMGR") (/bootmgr.bin)} 
                  {(Lit_Other "]")}
                )
              terminator: <Op_Semi ";">
            )
          ]
          action: [(C {(echo)} {(DQ ("Error : Boot Manager Not found!"))}) (C {(exit)} {(1)})]
          spids: [-1 117]
        )
      ]
      else_action: [(C {(echo)} {(DQ ("Boot Manager found..."))})]
      spids: [132 141]
    )
    (C {(echo)} {(DQ ("Generating bootloader..."))})
    (SimpleCommand
      words: [
        {(dd)}
        {(Lit_VarLike "if=") (/dev/zero)}
        {(Lit_VarLike "of=") (__tmp.bin)}
        {(Lit_VarLike "ibs=") (1)}
        {(Lit_VarLike "count=") (256)}
        {(Lit_VarLike "conv=") (notrunc)}
      ]
      redirects: [
        (Redir op_id:Redir_Great fd:-1 arg_word:{(/dev/null)} spids:[174])
        (Redir op_id:Redir_GreatAnd fd:2 arg_word:{(1)} spids:[177])
      ]
    )
    (SimpleCommand
      words: [
        {(dd)}
        {(Lit_VarLike "if=") ($ VSub_Name "$RELOCATOR") (/relocator.bin)}
        {(Lit_VarLike "of=") (__tmp.bin)}
        {(Lit_VarLike "ibs=") (1)}
        {(Lit_VarLike "conv=") (notrunc)}
      ]
      redirects: [
        (Redir op_id:Redir_Great fd:-1 arg_word:{(/dev/null)} spids:[199])
        (Redir op_id:Redir_GreatAnd fd:2 arg_word:{(1)} spids:[202])
      ]
    )
    (SimpleCommand
      words: [{(cat)} {(__tmp.bin)} {($ VSub_Name "$BOOTMGR") (/bootmgr.bin)}]
      redirects: [
        (Redir
          op_id: Redir_Great
          fd: -1
          arg_word: {($ VSub_Name "$BOOTMGR") (/bootloader.bin)}
          spids: [216]
        )
      ]
    )
    (C {(rm)} {(-f)} {(__tmp.bin)})
    (C {(rm)} {(-f)} {($ VSub_Name "$BOOTMGR") (/bootmgr.bin)})
  ]
)